TA21W01 Thermostat
THERMOSTAT OPERATION
The Thermostat Buttons and Switches
(Up arrow) Raises temperature setting.
(Down arrow) Lowers temperature setting.
FAN switch (ON,AUTO).
SYSTEM key (HEAT ( ), EMER*, OFF, COOL ( ),
AUTO ( ).
*EMER is available when H.P. is selected in the configuration menu.
The Display
Indicates a malfunction with the system.
Flame
icon
( ) is displayed when the SYSTEM mode is in HEAT.
Flame
icon
(
) is displayed flashing when 2nd-stage heat (Aux or
Emergency) is energized.
Snowflake icon
( )
is displayed
(non-flashing) when the SYSTEM mode is in COOL.
Snowflake
and
Flame icons
are displayed when the SYSTEM mode is in AUTO.
Snowflake
and
Flame icons
are displayed
(flashing) if the thermostat is in lockout mode to prevent the compressor from cycling too quickly.
EMER
is displayed flashing when the system switch is in EMER position.
Displays current temperature.
1
2
3
4
5
6
7
8
6
FAN
ON
MODE
SYSTEM
AUTO
STG1+2
EMER
20